* {
  padding: 0;
  margin: 0;
  list-style: none;
}
.box {
  width: 500px;
  border: 1px solid #f66;
  background-color: ghostwhite;
  margin: 50px auto;
  padding: 20px;
}
.header {
  display: flex;
  justify-content: space-between;
  height: 40px;
  padding: 5px;
  box-sizing: border-box;
  border: 1px solid #f66;
}
.header input {
flex: 1;
padding-left: 10px;
}
.header button {
  width: 80px;
}
ul {
  border: 1px solid #f66;
  padding: 10px;
  box-sizing: border-box;
  background-color: white;
}
li {
  height: 35px;
  line-height: 35px;
  background-color: #F6F6F6;
  margin-top: 5px;
  padding: 5px 20px;
  display: flex;
  justify-content: space-between;
}
li button {
  width: 60px;
}
